Improved machine for grinding- g-lass fruit-jars



@film MICI-IAEL 'NECKERMANN, OF PITTSBURG, PENNSYLVANIA.

i Lette/rs Patent Nd. 85,022, dated-.December 15.V 1868.

IMPRovED MACHINE PoR @BINDING-GLASS Envir-JARS.-

The Schedule referred .to in these Letters Patent and making part of the same.

To all whom it ana/y concern.:

Be it known thatI, MICHAEL NECKERMANN, o fPittsburg, in the county of -Allegheny, and State of Pennsylvania, have invented certain new and useful Improvements in a Machine for Grinding Glass Jars, &c.; and do hereby declare the following to be a full, clean-and exact description thereof,`referenceA being had to the accompanying d1aWings,-and to the letters of reference marked thereon.

The nature of my invention consists in the construction and general arrangement of a machine for grinding glass jars, tumblers, and other articlesof similar nature. i'

In order to enable others skilled in` the art to which my invention'appertans, to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, whichform a part of this specification, and in which 'Figure l is a longitudinal elevation Figure 2, an end view;

Figure .3, a bottom view of the upper grinding-plate or guide; and g Figure 4, a sectional plan view of the frame which holds the jars while they are beiuggror ad. z

A represents a table or frame of suitable dimensions, which has a circular hole cut through its top, in which hole a circular grinding-plate, B, isi placed.

This plate is horizontal, and secured 'to a shaft, C,

which passes through a box-'or'collar in the table A,

thus being held perfectly vertical. The lower end of said shaft rests in 'a journal-box, D, which? should be yprovided with a setescrew and jam-nut, for the purpose of keeping the grinding-plate always-at the 4proper height y n the tableA, at a suitable distance from the grinding-plate B, is a small shaft, E, which is placed in a slightly-inclined position towards the grinding-plate.

On this shaft is placed a wheel, F, which consists of a cast-iron hub or centre-piece, a, with a circular frame,

b, secured tothe same.

The frame b has a number of semicircular notches,

'l dd, on its outer periphery, for the purpose of holding and carrying the jars over the surface of the grindingplate. Said circularfra'me is made of'wood in segmental parts, and joined together. Afterwards the whole frame is secured to the cast-iron centre-piece a by bolts, to facilitate the changing o f the same for others, to suit different kinds and sizes of jars. A belt, G, passing around the wheel F, and a pulley,- I, on the vertical shaft H, impart motion to the same, and keep the jars irmly in their places.

The belt is kept sufficiently tight by means of a pulley, J, the shaft for which is secured to a slide moving on top ofthe table A, and which slide is held or pressed in proper position by means of the cord and weight K.

The belt. G iskeptin place, when there are no jars in the frame, by means Vofthe ends of the partitions which separate the seinicircular notches d d, these ends being cut, as shown in lig. l, so as to form a recess in' which the belt rests.

The vertical shaft H is driven by means of a wormgear and belt, connecting with the driving-shaft C, as shown in fig. l. Y

The cross-piece L is held in position, and regulated go any required height over the grinding-plate B, by two or more uprightiposts M M and nuts N N.

This cross-piece is provided on its under side with aninclined semicircular iron plate or plane, O, corresponding with the-inclined position of the wheel F.-

' The sem icircular portion of the table, where the j ars are put in and taken out, is lcovered with sheet-iron,to

prev'ent the wearing ofthe same. Said sheet-iron cover! projects somewhat above the surface of the grindingplate, where the jars enter, and below the same, where.V

the jars leave it, in order notto give any obstructions to the jars during the operation of grinding.

The operation of the machine is as follows:

rlhe machine is set in motion, and the jars put inthe notches d d, provided for that purpose, when they will be carried over the grinding-plate B, by means of the belt G, and gradually pressed down by the inclined iron plane O, and corresponding inclined position of the Wheel F, which holds the jars, when they will come out finished on the opposite side, from where they will be taken out for washing.

may be placed onthev opposite side.

in use, and thereby the uneven wear ofthe same is prevented, and bythe partial ch'ange of position of the jars, in relation to their axis, an even-ground face is obtained. A

Having thus fully described my invention, hat I claim as new, and desire to secure by Letters Patent, is4v 'L The adjustable, cross-piece L, provided with a semicircula'r inclinedl plate, O, and arranged substan tially as and for the-purposes herein set forth. 2. The wheel F, constructed, as described, of acastiron centre-piece, a, Aand wooden 'arne b, the latter provided with semicircular notches d d, all substantially as herein set forth. 1 3. The combination ofthe inclined shaft E, wheel F,'and inclined plate O, all arranged and operating substantially as and for the purposes herein set forth.

4. The arrangement of the grinding-plate B and wheel F on the table A, so that another wheel may be added, if desired, substantially as herein set forth. 5. The arrangement of the sliding pulley J, operating. on the belt G by means of a weight, K, orjts equivalent, for the purpose of holding the jars tightly in their places, substantially as hereiuset forth. Witnesses;V *MICHAEL NECKERMANN.

WmLIAM J meer, URBAN M AHBER.

The whole surface of the grinding-plate is brought 

